• Matéria: Matemática
  • Autor: Marceloslima
  • Perguntado 8 anos atrás

Efetue as divisões:
a) 4/5 : 2=
b)10/3 : 5/9=
c)13/49 : 39/14=
d)64/27 : 128/81=
g)81/5 : 27/25=
h 14/3 : 2 1/3=

Respostas

respondido por: JVictor14
3
a)  \frac{4}{5} : 2 =
 \frac{4}{5} :  \frac{2}{1} =
 \frac{4}{5} *  \frac{1}{2}
 \frac{4}{10} =
 \frac{2}{5} ou 0,4

b)  \frac{10}{3} : \frac{5}{9} =
 \frac{10}{3} *  \frac{9}{5} =
 \frac{90}{15} =
6

c) \frac{13}{49} : \frac{39}{14} =
 \frac{13}{49}  *\frac{14}{39} =
 \frac{182}{1911} =
 \frac{2}{21}

d)  \frac{64}{27} :  \frac{128}{81} =
 \frac{64}{27} * \frac{81}{128} =
 \frac{5184}{3456} =
 \frac{3}{2} ou 1,5

g)  \frac{81}{5} : \frac{27}{25} =
 \frac{81}{5} * \frac{25}{27} =
 \frac{2025}{135} =
15

h)   \frac{14}{3} : \frac{21}{3} =
 \frac{14}{3} * \frac{3}{21} =
 \frac{42}{63} =
 \frac{2}{3}

Espero ter ajudado.

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